ASTM A525 Galvanized Steel Flange

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: ASTM A525 Galvanized Steel Flange Product Information -:- For detailed product information, please contact sales. -: ASTM A525 Galvanized Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

ASTM A525 Galvanized Steel Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A525 Galvanized Steel: Commercial Quality Zinc-Coated Sheet** #### **1. Overview** ASTM A525 is a standard specification for steel sheet, zinc-coated (galvanized) by the hot-dip process, in coil and cut lengths. This specification covers various commercial qualities and designations intended for applications where corrosion resistance is required. The standard includes multiple coating designations, surface treatments, and surface finishes to meet diverse application requirements. The zinc coating provides sacrificial protection to the base steel, making it suitable for exposed applications where corrosion resistance is essential. #### **2. Chemical Composition** ASTM A525 does not specify mandatory chemical composition requirements, as it focuses primarily on the coating properties and mechanical properties of the base steel. However, the base steel typically conforms to one of the following specifications: **Base Steel Types:** - **Commercial Quality (CQ):** Typically low carbon steel with maximum 0.15% carbon - **Lockforming Quality (LFQ):** Suitable for severe deformation applications - **Drawing Quality (DQ):** For moderate drawing applications - **Structural Quality (SQ):** Meets ASTM A36 or similar chemistry requirements **Typical Base Metal Chemistry (Commercial Quality):** | Element | Composition (%) | |---------|-----------------| | Carbon (C) | ≤ 0.15 | | Manganese (Mn) | ≤ 0.60 | | Phosphorus (P) | ≤ 0.035 | | Sulfur (S) | ≤ 0.035 | #### **3. Physical & Mechanical Properties** **Coating Properties:** - **Coating Designations:** G30, G40, G60, G90, G115, G165 (oz/ft²) - **Coating Types:** Regular spangle, minimum spangle, extra-smooth, skin-passed - **Coating Structure:** Iron-zinc alloy layers with pure zinc overlay **Mechanical Properties (Vary by quality designation):** | Property | Commercial Quality | Drawing Quality | Structural Quality | |----------|-------------------|-----------------|-------------------| | **Tensile Strength** | 40-55 ksi | 40-50 ksi | 45-65 ksi | | **Yield Strength** | 30-45 ksi | 25-40 ksi | 36-50 ksi | | **Elongation** | 20-30% | 25-35% | 15-25% | **Physical Characteristics:** - **Coating Weight:** 0.30-1.65 oz/ft² (G30-G165) - **Surface Finish:** Regular spangle, minimized spangle, or smooth finish - **Surface Treatment:** Chemical treatment chromate or phosphate #### **4. Product Applications** ASTM A525 galvanized steel finds applications across numerous industries due to its excellent corrosion resistance and formability: **Construction & Building:** - Roofing and siding panels - Gutters and downspouts - Structural framing members - HVAC ductwork and components **Automotive & Transportation:** - Body panels and structural components - Truck and trailer parts - Underbody components **Industrial & Manufacturing:** - Electrical enclosures and cabinets - Agricultural equipment components - Storage tanks and containers - Appliance housings **Consumer Products:** - Outdoor furniture - Mailboxes and storage boxes - Playground equipment #### **5. International Standards & Equivalents** | Region/Country | Standard | Equivalent Grade | Notes | |----------------|----------|------------------|-------| | **International** | **ISO 3575** | Commercial Quality | Hot-dip zinc-coated steel | | **Europe** | **EN 10346** | DX51D+Z | Continuously hot-dip zinc-coated steel | | **Japan** | **JIS G3302** | SGCC | Hot-dip zinc-coated steel sheet | | **China** | **GB/T 2518** | DX51D+Z | Similar coating designations | | **Germany** | **DIN EN 10346** | DX51D+Z | European standard implementation | **Coating Weight Equivalents:** | ASTM A525 | ISO 3575 | EN 10346 | Typical Coating (g/m²) | |-----------|----------|----------|---------------------| | G60 | Z180 | Z180 | 180 | | G90 | Z275 | Z275 | 275 | | G115 | Z350 | Z350 | 350 | #### **6. Fabrication & Processing** **Forming Considerations:** - Excellent formability for bending and roll-forming - Coating may flake in severe deformation areas - Recommended to use proper die clearances and radii **Welding:** - Can be welded using standard processes (GMAW, GTAW, Resistance) - Requires proper ventilation due to zinc fumes - May require coating removal in weld areas for critical applications **Painting & Finishing:** - Chemical treatment required for paint adhesion - Suitable for powder coating and liquid paint systems - Chromate treatments provide enhanced corrosion protection --- **Disclaimer:** This information is for reference purposes only. For specific applications, consult the latest ASTM A525 standard and qualified materials engineers. Coating properties and mechanical characteristics may vary by manufacturer and processing parameters. -:- For detailed product information, please contact sales. -: ASTM A525 Galvanized Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4419 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: ASTM A525 Galvanized Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A525 Galvanized Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A525 Galvanized Steel Flange -:- For detailed product information, please contact sales. -:

Packing of ASTM A525 Galvanized Steel Flange -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Flange drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 890 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition